GPT-5.5 Pro
GLM-4.5
Decision Recommendation
⚖️ Editorial Verdict: In our analysis, GPT-5.5 Pro is the premium intelligence choice, scoring 0.0% higher on coding benchmarks. However, this accuracy premium comes with a cost overhead: GLM-4.5 is 67.5x cheaper to run. If you are building high-volume, simple chatbots or processing massive amounts of text where budget is critical, GLM-4.5 offers excellent cost savings. For agentic reasoning, code refactoring, or complex logical tasks, the accuracy premium of GPT-5.5 Pro fully justifies the cost.
GPT-5.5 Pro
Benchmarks & Scores
Cost & Performance
GLM-4.5
Benchmarks & Scores
Cost & Performance
Frequently Asked Questions
GLM-4.5 is cheaper than GPT-5.5 Pro. GLM-4.5 has a blended cost of $1.00/1M tokens, which is about 67.5x cheaper than GPT-5.5 Pro at $67.50/1M tokens.
Speed data is not available for GLM-4.5, while GPT-5.5 Pro generates 74 tokens per second.
Coding benchmark scores are not currently recorded for these models.
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